Windows, doors or the like

ABSTRACT

A mounting and sealing system for the closures of openings in building walls, such as doors or, particularly, casement windows wherein the movable closure frame is hinged to its fixed frame by means of a flexible sealing strip permanently attached to one of said frames and releasably attached to the other of said frames by the inflation of a hollow tubular section into effective engagement with said sealing strip or with a separate cooperating support bar; the window or the like being, when closed, preferably sealed around its entire periphery by one or a plurality of hollow sections, and provision being made for selectively varying the location of the hinge.

o ilmted States i atnt m1 3,66,937 Frach et al. [4 1 May 9, 1972 [54]WINDOWS, DOORS 0R TE LIKE 2,792,599 5/1957 Gantschnigg et al ..49/477 x3,335,538 8/1967 Ganzinotti ..49/477 X [72] 35 :2? ffggz jggg fg g3,449,864 6/1969 Frost-Dame et al.. ..49/471 8 Y 3,501,868 3/1970Ganzinotti ..49/477 [73] Assignee: Werner Frach, Bayreuth, GermanyPrimary Examiner-Kenneth Downey [22] Filed. .Ian. 30, 1970 Attorney-Noneand NOlte [211 App]. No.: 7,084

[57] ABSTRACT [30] Foreign Application Priorliy Data A mounting andsealing system for the closures of openings in building walls, such asdoors or, particularly, casement win- 3 1969 Germany 19 04 648'! dowswherein the movable closure frame is hinged to its fixed frame by meansof a flexible sealing strip permanently attached to one of said framesand releasably attached to the t 58] i l 16/1. other of said frames bythe inflation of a hollow tubular sec- 128 tion into efiectiveengagement with said sealing strip or with a separate cooperatingsupport bar; the window or the like be- 56] References Cited ing, whenclosed, preferably sealed around its entire periphery by one or aplurality of hollow sections, and provision being UNITED STATES PATENTSmade for selectively varying the location of the hinge. 2,757,225 7/1956Dunn ..49/477 X 15 Claims, 12 Drawing Figures 8 fa aa a 9 6/ 4 64 Q 7PKTENTEDMAY 9 I972 3 66 O 9 3 7 SHEET u or 4 W INVENTOR ATTORNEYWINDOWS, DOORS OR THE LIKE This invention relates to a device forholding and sealing openings in constructional work, in particular,window casements in window frames or doors in door frames, said windows,doors and frames being called, for convenience, the filling for theopening in the constructional work and having sealing, elastic,tube-like hollow sections, whose cross section can be altered byadjusting the internal pressure.

In known windows, for solving the problem of sealing, there are providedon the windows between the light frame and the fixed frame, sealsconstructed as pneumatically adjustable tubes of hollow section. Thewindow casement was thus locked in the window frame solely by mechanicalmeans (metal fittings). Even when several locking points are providedbetween the window easements and the fixed frames, when the seal is putunder pressure, it cannot be entirely avoided that the window casementbends between the locking points, so that the contact pressure of theseal and thus its sealing effect on the bent points is jeopardized. Thusthe known use of the seal of inflatable tubes in combination withmechanical fittings is unsuitable for solving reliably the problem ofsealing normal windows.

It has also already been suggested to operate the mechanical elements(metal fittings) for locking the window frame to the fixed frame bymeans of a hydraulic system, which is also suitable for operating thehollow sections serving as a seal. This proposal provides a seal betweenthe fixed frame and window, which presses the window frame over itsentire periphery against the fixed frame, and thus simultaneously sealsand locks them against each other, while requiring, how ever, arelatively complicated mechanism for moving the pivot and other movingparts for operating the window casement, for example, for swinging ortilting the latter.

Accordingly, the object of the invention is to provide a device foropening and closing fillings in openings in construe tional work, i.e.,for example, window easements in window frames, doors in door frames orthe like, in which both the sealing and the locking, as well as theholding of the filling during the opening, occurs substantially withoutadditional mechanical components and in a particularly easy manner.

This invention fulfills this object in that the region between the frameof the filling and the frame of the opening there is provided a flexibleand/or elastic closure member extending parallel to a hollow section,which with one longitudinal edge is attached either to the frame of thefilling or to the frame of the opening and which is arranged orconstructed to cooperate indirectly or directly with the hollow sectionin such a way that, on enlarging the cross section of the hollow sectionby increasing the internal pressure, the closure member is pressedagainst the frame of the opening and/or the frame of the filling at aregion which is at a distance from the longitudinal edge attached to theframe, so as to seal and to be fixed.

In the drawing,

FIG. 1 shows a horizontal section through the new structure in oneposition thereof.

FIG. 2 shows a similar section in a different position of the structure.

FIG. 3 shows a similar section applied to another embodiment of thedevice.

FIGS. 4 to I I show partial sections applied to other embodiments, and

FIG. 12 is a diagram of a control means for the invention.

The hollow sections (6 in FIG. 1) can be attached to the frame section 8of the fixed frame 2 or to the frame section 3 of the light or moveableframes 1. The closure member in this figure), correspondingly can beattached to the light frame section 3 or to the fixed frame section 8,and when the hollow section is inflated, the closure member can bepressed thereby against the fixed frame section or the light framesection.

In this solution, according to the invention, the flexible or elasticclosure member 5 co-operating with the hollow section 6 thus takes overboth the function of a sealing member as well as the function of a hingepassing between the window frame and the fixed frame, and for bothfunctions the hollow section is under pressure and the closure memberpresses against the frame section supporting the hollow section andseals it. The light frame and the fixed frame can only be separated fromeach other at the appropriate places by swinging or tilting when thehollow section is not under pressure; in the case when it is attached tothe light frame section, the closure member leaves the interior of thefixed frame section, and when it is attached to the fixed frame section,then it is released from the window light frame without hindrance by thehollow section.

According to a further proposal of the invention, it is provided thatthe closure member and hollow section are connected to each other in onepiece (FIGS. 10 and 11). This proposal brings an additional, quiteconsiderable simplification of the construction since in this case onlyone flexible part is necessary, which simultaneously carries out thefunction of sealing, holding, moving and locking. This member can eitherbe anchored in the fixed frame or in the light frame and its hollowportion, after its enlargement, can be arranged to enter either recessesformed from a single part of the frame or a recess formed from bothparts of the frame, so as to press together the parts of the frame as aresult of the pressure effect of the hollow section. This particularlyadvantageous solution constitutes an automatic protection.

Thus the device, according to the invention, dispenses with practicallyall metal fittings; due to this, a considerable simplification andreduction is price of the construction is achieved; moreover, theprovision of connecting members for attaching the metal fittings to theparts of the frame is also dispensed with, which is an appreciableadvantage particularly with plastic windows. The sealing effect achievedis far beyond requirements; any penetration by dirt or air or water iscompletely excluded. An absolutely uniform sealing effect over theentire periphery of the light or fixed frame is achieved. For example,it is possible, with a window of approximately l m. X l m. and at apressure of approximately 2 atmospheres inside the hollow section, ifthis has a contact width of approximately 1 cm., to produce a holdingforce of 800 kg. By way of comparison, the wind pressure at a wind force12 (hurricane) on such a window amounts to approximately kg. Naturally,it is possible to achieve such a sealing effect according to theinvention both with a liquid, as well as with a gaseous pressure medium.

According to which sides of the frame are acted upon by pressure andwhich are not under pressure, it is possible without special technicalexpenditure to achieve selectively a rotary tilting of the window abouta vertical part of the frame or about a horizontal part of the frame. Itis of no importance whether the window is pivoted about the left-orright-hand vertical part of the frame or about the upper or the lowerhorizontal part of the frame.

Accordingly, a separate pivot for left or right-hand closing windows andfor windows with or without the ability to tilt can be dispensed with.One single basic type of control (FIG. 12) can be provided in the mostsimple manner simply by appropriate reversal of tube couplings to thedesired conditions (positions of the tilting and/or axis of rotation InFIG. I there is shown a section through the window frame of a pivotingand tilting window. The glazing 1a is mounted in the light frame 1; onits side adjacent the fixed frame 2 the light frame has a frame section3, which co-operates with the frame section 8 of the fixed frame. Theframe sections 3 and 8 can consist of any rigid material; normally, theyare of metal, preferably steel or aluminum. In the interior region ofthe frame section there is provided a flexible and, if desired, elasticclosure member 5, which according to FIG. I is securely attached in thelight frame section 3, namely at 5a, and whose free end in the region 5bco-operates with the hollow section 6 attached in the fixed framesection 8, as indicated at 6a. In FIG. I the hollow section 6 is shownin the inflated position, i.e., by means of the pressure prevailing inthe hollow section 6, the closure member 5 is pressed against anotherpart of the fixed frame section (e.g., the corrugated part 8a) and formsa seal. In the position of the closure member and hollow section shownin FIG. 1, the window casement can be rotated in the direction of thearrow a about the rod 4 connected to the light frame section 3, the rod4 moving along the slide bar 7, which is supported on the fixed framesection. It is advisable to make the slide bar 7 independent of thefixed frame section, because in this way an accurate adjustment of thewindow casement in the fixed frame is facilitated. In certaincircumstances, it is sufficient to provide such a slide bar 7 solely onthe side of the window chosen as the axis of rotation; in this case thewindow can move out more easily during rotation of the opposite side.Provided the hollow section has the inflatable position according toFIG. 1, the side of the window shown here is tightly sealed and theclosure member 5 is retained in the fixed frame section. Since it isattached at its other edge, namely at 5a in the light frame section, itserves simultaneously as a hinge during rotation of the window casementabout the rod 4, the thinner region 5 of the closure member 5 partiallywinding around the rod 4, according to FIG. 2. The pivoted window, inthe position shown in FIG. 2, and also in all the preceding intermediatepositions, is held by the closure member 5 extending along the entireside of the window. An additional support can be achieved by a suitableconstruction of the rod 4 in that the ends of latter can abut both theupper as well as the lower cross piece of the window frame.

If the hollow section 6 is not under pressure and due to this releasesthe closure member, then the window casement 1, 1a can be swung out ofthe position shown in FIG. 1 about an upper or lower swinging axis inthe direction of arrow b out of the fixed frame. On swinging back, inorder that the correct mounting of the closure member 5 in the interiorspace in the fixed frame section 8 is achieved there is provided on thefixed frame section a sloping projection 9 directed towards the lightframe section, on which the front part 5b of the closure member canslide, without disturbing the rear, pressureless hollow section 6 orlocking with it in doing so. Finally, when the window is open thisprojection 9 serves as a protection against damage to the hollow section6.

FIG. 3 shows another embodiment of the device according to theinvention, with the window closed. Here the rod 14 and the closuremember 15 are connected to the fixed frame section 18. The hollowsection 16, constructed in the form of a tube, is attached to the lightframe section 13. Thus each of the said parts, in contradistinction toFIG. 1, is arranged in the respective other part of the frame. The lightframe section 13 can have a recess 17 corresponding to the shape of theclosure member 15, into which the closure member is tightly pressedafter extension of the hollow section 16.

FIG. 4 shows an embodiment of the device according to the invention,which is very similar to that shown in FIG. 1. In contrast to FIG. 1,the fixed frame section 18 near to the region 5b of the closure member 5has no corrugation 8a, but is constructed to be perfectly smooth, asshown at 180. The hollow section 16 is shown in the pressureless state,in which it disappears completely behind the projection 19, so that whenthe window swings it is guaranteed that the closure member 5 can enterand leave without friction.

In FIG. 5 the region 2511 of the closure member 25 is constructed as asymmetrical bulge, one side ofwhich engages in a correspondingly shapedrecess 17 in the fixed frame section 28, so that when the hollow section16 presses against it a tight connection occurs. In contrast to FIG. 4,the fixed frame section shown in FIG. 5 has no outer sealing strip 27.

FIG. 6 shows a variation of the device according to the invention on afixed frame section 28 and a light frame section 3, which is constructedin a similar manner, to that shown in FIGS. 1, 2, 4 and 5. However, byway of contrast to the said Figures between the hollow section 26 andthe closure member 35 (with enlarged edge region 35a) a support bar 12is displaceably arranged, such that after the hollow section 26 has beenacted upon by the pressure medium the support bar 12 moves in thedirection of the closure member 25 and presses the latter in anair-tight manner against another part of the frame section, for exampleforming a form-locking connection. Thus the hollow section 26 can, asshown in FIG. 6, be anchored both in the fixed frame section, as well asin the support bar, as shown at 26a and 26b; however, it is sufficientto anchor the hollow section in only one of those parts or to completelydispense with one anchorage.

In the devices according to the invention, shown in FIGS. 7, 8 and 9,support bars are also provided, which however, are different from thosein FIG. 6, and are pivotally mounted at one edge in a part of the frame.According to FIG. 7, the closure member 55 is anchored in the lightframe section 43 and the hollow section 46 in the fixed frame section48. As a result of the enlargement of the cross section of the hollowsection 46 the support bar 55 pivots about its axis 48a in the fixedframe section in the direction of the closure member 45 and presses itsdownwardly projecting front end against a complementary shaped innerpart 47 of the fixed frame section, whose outer surface 44 servessimultaneously as an abutment for the web 43 of the light frame section43 sliding thereon. The enlarged edge 45a of the member 45 is securelyheld between the end ofthe bar 55 and the part 47.

In the embodiment according to FIG. 8, the operation is similar; incontrast to FIG. 7 the hollow section 56 is anchored in the fixed framesection 58 and in the inflated state presses the support bar 53 againstthe closure member 45 anchored in the light frame section 3. The supportbar 53 has at its end opposite the pivot a projection, with which itengages behind the front bulge 45a of closure member 45.

The embodiment of the device according to the invention shown in FIG. 9corresponds, regarding the arrangement of the parts 65 and 66, to theembodiment illustrated in FIG. 3; in contrast to FIG. 3, according toFIG. 9 the hollow section 66 acts only indirectly, namely by means ofthe support bar 63, on the closure member 65. The fixed frame isdesignated 68. The arrows provided in FIGS. 7, 8 and 9 indicate thedirection of movement of the window casement during its rotation aboutthe pivot illustrated in the drawings. In all the embodiments shown inthe drawings, it should be taken into consideration that the axis ofrotation does not come to lie exactly at the center point of the rod 4,but that the latter during the movement of the rod along its abutmentwith the increasing rotation of the light frame according to theembodiment moves outwards or inwards.

In FIGS. 10 and 11, similar embodiments of the invention areillustrated, the closure member 5 and the hollow section 6 (e.g., ofFIGS. 1 and 2) being combined here as a single member 75. This membercan be anchored either in the light frame section 3 (FIG. 10) or in thefixed frame section 88 (FIG. 11), corresponding to FIGS. 1 and 3. At itsfront, free end it is constructed as a hollow section, whose interior isconnected to a pressure medium. When the hollow section 75c of themember 75 is under pressure, then it rests against the inner wall of therecess 79 or 80 provided in the fixed frame section 78 or in the lightframe section 83, respectively, and thus seals the light frame sectionwith respect to the fixed frame section. Finally, one more suchembodiment is conceivable within the scope of the invention, in whichthe recess 19 or 20 is partly formed by the light frame section andpartly by the fixed frame section.

FIG. 12 is a diagram of the tube system for the pressure medium. Thistube system, connected to the device according to the invention, issuitable for operating and controlling a rotary, tilting window, thetilting axis lying selectively in the lower or upper cross piece of theframe and the axis of rota tion lying either in the right-hand orleft-hand side piece of the frame. In this case, it is appropriate toarrange the control members for putting the hollow sections underpressure or exhausting them, which are provided in a certain side orcross piece of the frame, in or on the fixed frame; naturally however,it is also possible to arrange these members, at least partially, in thelight frame or entirely outside the window. The illustration accordingto FIG. 12, includes the hollow sections 6 (16, 26, 46, 56, 66, 75c)running in the individual parts of the window section, and the tubeconnections 92 to 94, by means of which the hollow sections 6 (etc.) canbe connected by the valve 95 to a pump, which is not shown, according tothe switch positions I, ll and ill. The tube connection 91 produces theconnection to a double acting piston-cylinder system 96, whose pistoncan be used, for example, for operating a device for rotating or tiltingthe unlocked window casement. The ends of the tubes 91 to 94 connectedto the hollow sections 6 or to the piston cylinder system 96 areconnected to the valve 95 and can be selectively put under pressure orexhausted by a pump in the switch positions I, II and Ill.

The method of operation of the device according to the inventioncontrolled according to the circuit diagram shown in FIG. 12 is afollows:

If the axis of rotation lies in the right-hand side-member of the frameand the tilting axis lies in the lower cross member of the frame, thenthe hollow sections are connected to each other in the left-hand uppercorner of the frame, i.e., at 90 and in the opposite corner areseparated from each other and separately sealed. With a closed windowall the hollow sections 6 are filled with pressure medium. Now if theswitch lever of the valve 95 is brought into switch position I, then theleft-hand and the upper sections of the hollow section and theright-hand section of the hollow section are connected to the pump. Inthis position, the said sections of the hollow section can be madepressure-less, so that only the lower section remains under pressure.The light frame can now be tilted about the lower cross member of theframe section. Due to subsequent switching to the switch position Ill,the cylinder 96 is connected to the pump and the rotating or tiltingdevice can be actuated. For the purpose of closing the window casementis drawn back, still in the same switch position, by the reversed actionof the cylinder 96. Then it is switched back to position I, so that allthe hollow sections extend and seal the window uniformly on all sides.By switching to Position ll, the lefthand and upper section of thehollow section and independently thereof the lower section of hollowsection are connected to the pump and can accordingly be exhausted.After the exhausting is completed, only the right-hand section of hollowsection is filled with pressure medium and the window can be pivotedwith its axis of rotation in the right-hand sidemember of the frame. Ifthe window is equipped so that the rotation takes place about theleft-hand side-member of the frame, then the ends of the pipes are notconnected to each other as they are according to the drawings, but twotube ends are connected to each other according to the crossed lineshown in a broken line. Moreover, for this purpose, the connection atthe point 90 is broken and instead of it, connection is made at thepoint 99. The window can now be pivoted about the left-hand verticalaxis in Position II.

What is claimed is:

1. Window, door or the like, having fixed and movable frames; elastictube-like hollow structure expandable by internal fluid pressure, saidhollow structure being secured to one of said frames; a flexible strip,parallel and coextensive with said hollow structure and having onelongitudinal edge thereof attached to one of the frames, while allowingthe hollow structure to lock the other longitudinal edge to the otherframe, for flexibly interconnecting the two frames; and a rigid bearingstrip having one longitudinal edge secured to one part of one frame andhaving a free longitudinal edge contacting the other frame, to providefurther interconnection between the frames, whereby the hollowstructure, flexible closure strip and rigid bearing strip providesealing, locking and bearing means between the frames.

2. Window, door or the like according to claim 1 addi tionally includingon one of the frames, opposite the free edge of the rigid bearing strip,a slide bar releasably attached to the frame for engagement with saidfree edge.

3. A window, door or the like having fixed and movable frames; elastic,tube-like hollow structure whose cross section can be altered bypneumatic or hydraulic control of inside pressure, said structure beingarranged in one of said frames; a flexible closure member parallel andco-extensive with said structure and having one longitudinal edgethereof attached to one of the frames, the free longitudinal edge inclosed position of the window, door or the like penetrating the otherframe and being fixed in it by mechanical pressure received from thehollow structure, whereby said hollow structure can be used as part ofthe closure means or as a pivot between any of said comers.

4. A window, door or the like according to claim 3, wherein said hollowstructure is arranged in one of said frames so as to thrust the freelongitudinal edge of the flexible closure member against the part of theframe wherein the hollow structure is arranged.

5. A window, door or the like according to claim 3, wherein the frame inwhich the hollow structure is provided has a projection covering thehollow structure, said projection being secured to such frame opposite aslot for entry of the flexible closure member.

6. A window, door or the like, having fixed and movable frames; elastic,tubedike hollow structure whose cross section can be altered bypneumatic or hydraulic control of internal pressure, said hollowstructure being secured to one of said frames; a flexible closure memberparallel and coextensive with said structure and having one longitudinaledge thereof attached to one of the frames while having the otherlongitudinal edge positioned to be held or released, with respect to theother frame, by the hollow structure; and means disposed in the regionof the corners of the frames for variably dividing said hollow structureinto at least two sections, for independent control of said pressure,whereby said hollow structure and flexible closure member can be used asa sealing and locking structure or, between said comers, as a pivotstructure.

7. A window, door or the like according to claim 6, additionallyincluding a support bar movably arranged between the hollow structureand the flexible closure member.

8. A window, door or the like according to claim 6, wherein the flexibleclosure member has a bulge on its edge remote from the edge attached tothe frame and the other frame has a corresponding recess which partiallyengages the flexible closure member and against which the flexibleclosure member can be pushed by the hollow structure in an air tightmanner.

9. Window, door or the like according to claim 7, characterized in thatthe support bar is displaceably arranged in one of the frames, thehollow section being attached between the support bar and the framewherein the support bar is arranged.

10. Window, door or the like according to claim 7 characterized in thatthe support bar is pivoted in one of the frames about one longitudinaledge, the hollow section being arranged to be supported between thesupport bar and the corresponding frame.

lll. Window, door or the like according to claim 8 characterized in thatthe hollow section is constructed and arranged to engage behind thebulge of the closure member in its sealing position.

12. Window or the like, according to claim 3, characterized in that theclosure member and the hollow section are integral.

13. Window or the like, according to claim 3, characterized in that thepart of the frame in contact with the region of the closure member isconstructed to be uneven, for example, corrugated.

14. A window, door or the like according to claim 6 additionallyincluding a rigid bearing strip having one longitudinal edge secured tosaid one longitudinal edge of said flexible closure member which isattached to one of the frames, said bearing strip having a freelongitudinal edge contacting the hollow structure in the other frame.

15. Window, door or the like, having fixed and moveable frames; elastictube-like hollow structure expandable by other frame, fluid pressure,said hollow structure being secured to flexible strip which is attachedto one of the frames; said bearing strip having a free longitudinal edgecontacting the other frame, to provide further interconnection betweenthe frames, whereby the hollow structure, flexible closure strip andrigid bearing strip provide sealing locking and bearing means betweenthe frames.

I i i i Patent No. Dated It is certified that error appears in theabove-identified patent and that said Letters Patent are herebycorrected as shown below:

Claim 15, lines 2 and3 after "by should read "internal fluid pressure",not "by other frame, fluid pressure Signed and sealed this 25th day ofJuly 1972.

(SEAL) Attest: I

EDWARD M.FLETCHER, JR. ROBERT GOTTSCHALK Attesting Officer Commissionerof Patents wiiwwwi r'ORM FED-1050 (10-69) LsCOMM-DC GOING-P6 us.GOVERNMENT murmur, OFFICE: 1969 0-366-3:

1. Window, door or the like, having fixed and movable frames; elastictube-like hollow structure expandable by internal fluid pressure, saidhollow structure being secured to one of said frames; a flexible strip,parallel and coextensive with said hollow structure and having onelongitudinal edge thereof attached to one of the frames, while allowingthe hollow structure to lock the other longitudinal edge to the otherframe, for flexibly interconnecting the two frames; and a rigid bearingstrip having one longitudinal edge secured to one part of one frame andhaving a free longitudinal edge contacting the other frame, to providefurther interconnection between the frames, whereby the hollowstructure, flexible closure strip and rigid bearing strip providesealing, locking and bearing means between the frames.
 2. Window, dooror the like according to claim 1 additionally including on one of theframes, opposite the free edge of the rigid bearing strip, a slide barreleasably attached to the frame for engagement with said free edge. 3.A window, door or the like having fixed and movable frames; elastic,tube-like hollow structure whose cross section can be altered bypneumatic or hydraulic control of inside pressure, said structure beingarranged in one of said frames; a flexible closure member parallel andco-extensive with said structure and having one longitudinal edgethereof attached to one of the frames, the free longitudinal edge inclosed position of the window, door or the like penetrating the otherframe and being fixed in it by mechanical pressure received from thehollow structure, whereby said hollow structure can be used as part ofthe closure means or as a pivot between any of said corners.
 4. Awindow, door or the like according to claim 3, wherein said hollowstructure is arranged in one of said frames so as to thrust the freelongitudinal edge of the flexible closure member against the part of theframe wherein the hollow structure is arranged.
 5. A window, door or thelike according to claim 3, wherein the frame in which the hollowstructure is provided has a projection covering the hollow structure,said projection being secured to such frame opposIte a slot for entry ofthe flexible closure member.
 6. A window, door or the like, having fixedand movable frames; elastic, tube-like hollow structure whose crosssection can be altered by pneumatic or hydraulic control of internalpressure, said hollow structure being secured to one of said frames; aflexible closure member parallel and co-extensive with said structureand having one longitudinal edge thereof attached to one of the frameswhile having the other longitudinal edge positioned to be held orreleased, with respect to the other frame, by the hollow structure; andmeans disposed in the region of the corners of the frames for variablydividing said hollow structure into at least two sections, forindependent control of said pressure, whereby said hollow structure andflexible closure member can be used as a sealing and locking structureor, between said corners, as a pivot structure.
 7. A window, door or thelike according to claim 6, additionally including a support bar movablyarranged between the hollow structure and the flexible closure member.8. A window, door or the like according to claim 6, wherein the flexibleclosure member has a bulge on its edge remote from the edge attached tothe frame and the other frame has a corresponding recess which partiallyengages the flexible closure member and against which the flexibleclosure member can be pushed by the hollow structure in an air tightmanner.
 9. Window, door or the like according to claim 7, characterizedin that the support bar is displaceably arranged in one of the frames,the hollow section being attached between the support bar and the framewherein the support bar is arranged.
 10. Window, door or the likeaccording to claim 7 characterized in that the support bar is pivoted inone of the frames about one longitudinal edge, the hollow section beingarranged to be supported between the support bar and the correspondingframe.
 11. Window, door or the like according to claim 8 characterizedin that the hollow section is constructed and arranged to engage behindthe bulge of the closure member in its sealing position.
 12. Window orthe like, according to claim 3, characterized in that the closure memberand the hollow section are integral.
 13. Window or the like, accordingto claim 3, characterized in that the part of the frame in contact withthe region of the closure member is constructed to be uneven, forexample, corrugated.
 14. A window, door or the like according to claim 6additionally including a rigid bearing strip having one longitudinaledge secured to said one longitudinal edge of said flexible closuremember which is attached to one of the frames, said bearing strip havinga free longitudinal edge contacting the hollow structure in the otherframe.
 15. Window, door or the like, having fixed and moveable frames;elastic tube-like hollow structure expandable by other frame, fluidpressure, said hollow structure being secured to and extending along atleast one side of one of said frames; a flexible strip, parallel andco-extensive with said hollow structure and having one longitudinal edgethereof attached to one of the frames while allowing the hollowstructure to lock the other longitudinal edge to the other frame forflexibly interconnecting the two frames; and a rigid bearing striphaving one longitudinal edge secured to said longitudinal edge of saidflexible strip which is attached to one of the frames; said bearingstrip having a free longitudinal edge contacting the other frame, toprovide further interconnection between the frames, whereby the hollowstructure, flexible closure strip and rigid bearing strip providesealing locking and bearing means between the frames.